The Joker, wearing a Bat suit that Batman never had the chance of wearing, takes on the Dark Knight inside an Ace Chemical plant. In the background, the dead body of Alfred Pennyworth is weaponized with a strain of Joker venom that somehow is able to bring a corpse to life.
The fight is pretty much boring, and it doesn’t end conclusively as Harley Quinn interrupts the brawl by shooting the Joker’s eye out with a rifle.
From – Batman Vol. 3 #100
